diff --git a/component/libc/printf.c b/component/libc/printf.c
index d662c98..d44cc2f 100644
--- a/component/libc/printf.c
+++ b/component/libc/printf.c
@@ -2,16 +2,11 @@
 #include "stdarg.h"
 #include "string.h"
 
-UART_HandleTypeDef *console = NULL;
-extern UART_HandleTypeDef UartHandle;
+extern UART_HandleTypeDef console;
 
 int putchar(int c)
 {
-    if (console == NULL) {
-        return 0;
-    }
-
-    HAL_UART_Transmit(console, (uint8_t*)&c, 0, HAL_TIMEOUT_VALUE);
+    HAL_UART_Transmit(&console, (uint8_t*)&c, 0, HAL_TIMEOUT_VALUE);
 
     return c;
 }
@@ -22,11 +17,7 @@ int puts(const char *c)
 
     len = strlen(c);
 
-    if (console == NULL) {
-        return 0;
-    }
-
-    HAL_UART_Transmit(console, (uint8_t*)c, len, HAL_TIMEOUT_VALUE);
+    HAL_UART_Transmit(&console, (uint8_t*)c, len, HAL_TIMEOUT_VALUE);
 
     return len;
 }
@@ -41,11 +32,7 @@ int putstring(const char *c)
 
     len = strlen(c);
 
-    if (console == NULL) {
-        return 0;
-    }
-
-    HAL_UART_Transmit(console, (uint8_t*)c, len, HAL_TIMEOUT_VALUE);
+    HAL_UART_Transmit(&console, (uint8_t*)c, len, HAL_TIMEOUT_VALUE);
 
     return len;
 }
@@ -63,7 +50,7 @@ int printf(const char *fmt, ...)
 
     len = (len > sizeof(print_buf)) ? sizeof(print_buf) : len;
 
-    HAL_UART_Transmit(console, (uint8_t*)print_buf, len, HAL_TIMEOUT_VALUE);
+    HAL_UART_Transmit(&console, (uint8_t*)print_buf, len, HAL_TIMEOUT_VALUE);
 
     return len;
 }
@@ -81,8 +68,3 @@ int printf(const char *fmt, ...)
     return len;
 }
 #endif
-
-void uart_log_set_console(void)
-{
-    console = &UartHandle;
-}
diff --git a/component/libc/vsnprintf.c b/component/libc/vsnprintf.c
index 23ed71c..37da9f2 100644
--- a/component/libc/vsnprintf.c
+++ b/component/libc/vsnprintf.c
@@ -219,11 +219,11 @@ static inline void out_buffer(char character, void* buffer, size_t idx, size_t m
   }
 }
 
-extern UART_HandleTypeDef *console;
+extern UART_HandleTypeDef console;
 static inline void out_console(char character, void* buffer, size_t idx, size_t maxlen)
 {
-  while (!(__HAL_UART_GET_FLAG(console, UART_FLAG_TXFNF)));
-  console->Instance->TDR = (uint8_t)character;
+  while (!(__HAL_UART_GET_FLAG(&console, UART_FLAG_TXFNF)));
+  console.Instance->TDR = (uint8_t)character;
 }
 
 
diff --git a/driver/board/uart_log.c b/driver/board/uart_log.c
index f08c6cf..49fe608 100644
--- a/driver/board/uart_log.c
+++ b/driver/board/uart_log.c
@@ -1,8 +1,6 @@
 #include "uart_log.h"
 
-UART_HandleTypeDef UartHandle;
-
-extern void uart_log_set_console(void);
+UART_HandleTypeDef console;
 
 static void UART_LOG_Msp_Init(void)
 {
@@ -46,28 +44,26 @@ static void UART_LOG_Msp_Init(void)
 
 void uart_log_init(void)
 {
-    UartHandle.Instance             = USART_LOG;
-    UartHandle.Init.BaudRate        = UART_LOG_BAUDRATE;
-    UartHandle.Init.WordLength      = UART_WORDLENGTH_8B;
-    UartHandle.Init.StopBits        = UART_STOPBITS_1;
-    UartHandle.Init.Parity          = UART_PARITY_NONE;
-    UartHandle.Init.HwFlowCtl       = UART_HWCONTROL_NONE;
-    UartHandle.Init.Mode            = UART_MODE_TX_RX;
-    UartHandle.Init.ClockPrescaler  = UART_PRESCALER_DIV1;
-    UartHandle.Init.OneBitSampling  = UART_ONE_BIT_SAMPLE_DISABLE;
-    UartHandle.Init.OverSampling    = UART_OVERSAMPLING_16;
+    console.Instance             = USART_LOG;
+    console.Init.BaudRate        = UART_LOG_BAUDRATE;
+    console.Init.WordLength      = UART_WORDLENGTH_8B;
+    console.Init.StopBits        = UART_STOPBITS_1;
+    console.Init.Parity          = UART_PARITY_NONE;
+    console.Init.HwFlowCtl       = UART_HWCONTROL_NONE;
+    console.Init.Mode            = UART_MODE_TX_RX;
+    console.Init.ClockPrescaler  = UART_PRESCALER_DIV1;
+    console.Init.OneBitSampling  = UART_ONE_BIT_SAMPLE_DISABLE;
+    console.Init.OverSampling    = UART_OVERSAMPLING_16;
 
     UART_LOG_Msp_Init();
 
-    if(HAL_UART_Init(&UartHandle) != HAL_OK)
-    {
+    if(HAL_UART_Init(&console) != HAL_OK) {
         while (1) {
         }
     }
     /* Set the RXFIFO threshold */
-    HAL_UARTEx_SetRxFifoThreshold(&UartHandle, UART_RXFIFO_THRESHOLD_1_2);
+    HAL_UARTEx_SetRxFifoThreshold(&console, UART_RXFIFO_THRESHOLD_1_2);
 
     /* Enable the FIFO mode */
-    HAL_UARTEx_EnableFifoMode(&UartHandle);
-    uart_log_set_console();
+    HAL_UARTEx_EnableFifoMode(&console);
 }